Modeling shock loading of multicomponent materials including bismuth

Кинеловский, С. А.; Maevskii, K. K.

doi:10.1134/s0018151x16050163

Cited by 19 publications

(16 citation statements)

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“…In order to calculate thermodynamic parameters of porous mixtures under dynamic loadings, a model of shock-wave loading with allowance for gas in the pores is used [11][12][13]. The model was able to describe the parameters in a wide range of pressures under shock wave loading, with the possibility of taking into account polymorphic phase transition of the components of the mixtures.…”

Section: Calculation Modelmentioning

confidence: 99%

“…Here P C , E C , P T , and E T are the potential and thermal components of pressure and specific energy, respectively; c V is the specific heat capacity; T 0 is the initial temperature; and the function Γ = P C V /E C that determines the contribution of the thermal component depends explicitly only on the temperature Γ(T ) in the model [11][12][13]. By taking into account the pressure region of applicability of this model 5 GPa that is of interest to us, initial energy E 0 of a substance under normal conditions is considered to be equal to zero.…”

Section: Calculation Modelmentioning

confidence: 99%

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Thermodynamic parameters of mixtures with epoxy as a component under shock wave loading

Maevskii

Кинеловский

2018

J. Phys.: Conf. Ser.

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Abstract. The results of numerical experiments on modeling of shock wave loading of mixtures are obtained by using thermodynamic equilibrium model TEC (thermodynamic equilibrium components) are presented. The thermodynamic parameters are modeled for the mixtures that include epoxy resin as a component. The model allows taking into account the phase transition under shock wave loading, when the substance in the region of phase transition is considered as mixture of low-pressure phase and high-pressure phase. Interest in the investigation of compressibility of such mixtures is associated as with the possibility of creating materials that have the required properties and the properties of the materials themselves. The good agreement of these model calculations with the data of different authors that defined on the experiments basis is obtained. The model allows to describe dynamic loading of solid and porous mixtures comprising epoxy resin and various components such as quartz SiO2, periclase MgO, corundum Al2O3, spinel MgAl2O4, enstatite Mg2[Si2O6]. IntroductionThe investigations of thermodynamics parameters of porous materials including, in particular, the solid organic substances under shock-wave loading are of interest in many problems of modern science; in this regard new models appear for the description of the behavior of such materials, for example [1][2][3][4][5][6][7][8]. These investigations are important in solving the applied problems of dynamic compaction, shock-wave synthesis, and other explosive technologies.Interest in the study of compressibility of mixtures comprising as component epoxy resin due to their properties [9,10]. The composite materials combining the properties of the components are created on base on these mixtures. Epoxy resins are characterized by high resistance to the action of halogens, some acids, alkalis; they also have high adhesion to metals. Additional properties of the composite materials are obtained by using various additives to the mixture. For example, quartz SiO 2 is widely used in optical and electronic devices, in the manufacture of silica refractories and quartz glass. An additional important property of quartz is the existence of polymorphic phase transition under shock wave impact. Substantial change in the volume of such components included in the mixtures allows expanding the range of changes of thermodynamic parameters of the mixtures under shock wave loading. Periclase MgO is important component of magnesite and dolomite refractory. Abrasive materials are produce from corundum Al 2 O 3 . Spinel MgAl 2 O 4 is rare mineral of cubic crystal structure. It is a mixed oxide of magnesium and aluminum (volumetric fraction MgO 28.2%; Al 2 O 3 71.8%). The name of mineral enstatite Mg 2 [Si 2 O 6 ] is derived from the Greek words ενστ ατ ης (enstates) "the enemy", "the resistance",

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Section: Calculation Modelmentioning

confidence: 99%

Section: Calculation Modelmentioning

confidence: 99%

Thermodynamic parameters of mixtures with epoxy as a component under shock wave loading

Maevskii

Кинеловский

2018

J. Phys.: Conf. Ser.

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“…3. Shock adiabats of silicon nitride (1) and nitride of aluminum (2) The results for the mixture of AlN and Si3N4 with equal volume fractions and initial density 3.335 g/cm 3 are shown in Fig. 3.b.…”

Section: áBra Lökéshullám Adiabata Vonalak Kvarc-volfrám Keverékre (1mentioning

confidence: 99%

“…Calculations of the mixtures of quartz with tungsten and quartz with teflon, as well as data obtained on the basis of the experiments [7] are shown in Fig. 2 (2). Experimental data (3), (4) from [7].…”

Section: Fig 1 Shock Adiabats In Coordinates Pressure -Compressionmentioning

confidence: 99%

“…Materials experiencing a phase transition under shock wave loading are of particular interest when solving this task. On one hand, such materials, e.g., quartz, graphite, bismuth and others have a high compression ratio that allows you to expand the field of the feasible thermodynamic parameters [1,2]. This gives the opportunity to purposefully achieve the conditions necessary for the production of ceramics with the given properties.…”

Section: Introductionmentioning

confidence: 99%

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Thermodynamic parameters of mixtures with allowance for phase transition components under shock-wave loading

Кинеловский¹,

Maevskii²

2017

Epitoanyag - JSBCM

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the shock-wave synthesis and compaction using powder mixtures are the one of perspective directions of new materials creation. the results of numerical experiments on modeling of shock wave loading of mixtures with allowance for phase transition components in their composition are presented. the significant change in volume in the region of phase transition components included in the mixtures allows us to expand the range of variation of thermodynamic parameters of the mixtures under shock wave loading. the calculation model is based on the assumption that all components of mixture under shock-wave loading are in thermodynamic equilibrium (model tec). the model tec allows us to describe the region of the polymorphic phase transition, considering the material in the region of phase transition as a mixture of low-pressure phase and high-pressure phase. the good agreement of these model calculations with the data of different authors defined on the basis of experiments is obtained. thermodynamic parameters of the nitrides mixture, solid and porous mixtures with quartz as component were reliably described. this model is useful for determining the compositions and volume fractions of the components of the mixture to obtain the specified parameters of solid and porous materials under shock-wave loading.

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Influence of Phase Transitions Components of Mixtures on Thermodynamic Parameters of Shock-Wave Loading

Maevskii

Кинеловский

2019

31st International Symposium on Shock Waves 1

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Modeling shock loading of multicomponent materials including bismuth

Cited by 19 publications

References 19 publications

Thermodynamic parameters of mixtures with epoxy as a component under shock wave loading

Thermodynamic parameters of mixtures with epoxy as a component under shock wave loading

Thermodynamic parameters of mixtures with allowance for phase transition components under shock-wave loading

Influence of Phase Transitions Components of Mixtures on Thermodynamic Parameters of Shock-Wave Loading

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